Home / 1,102,223.67-1,653,440.06-428,357.03

Finding the Fourth Proportional to 1,102,223.67, 1,653,440.06 and 428,357.03

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Solution

The fourth proportional to 1,102,223.67, 1,653,440.06 and 428,357.03 is: 642,576.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,223.67 : 1,653,440.06 = 428,357.03 : x
  2. Step 2: Convert to fraction form
    1,102,223.67/1,653,440.06 = 428,357.03/x
  3. Step 3: Cross multiply
    1,102,223.67x = 1,653,440.06 × 428,357.03
  4. Step 4: Simplify right side
    1,102,223.67x = 708,262,666,188.31
  5. Step 5: Solve for x
    x = 708,262,666,188.31/1,102,223.67
  6. Step 6: Final answer
    x = 642,576.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.